Entry scores are only part of how admissions teams assess an application — consistency across your academic record and a clear statement of purpose that connects your prior study to the course you're applying for both matter.
English requirement waivers are usually available if you've completed a qualification taught in English, but the evidence requirements are specific to each institution, so check before assuming you're exempt.
Intake timing affects more than just your start date — applying earlier in an intake cycle generally means more available places and more time to resolve any document issues before the deadline.